Machine for making stereotype printing-plates.



H. A. W. WOOD.

MACHINE FOR MAKING STEREOTYPE PRINTING PLATES.

APPLICATION FILED A'UGI II, 1910.

I LEWTI WYQI, Patented Dec. 5,1916.

2331 Attorneys To all 'whom'z't may concern;

. there will be no buckling, of the plate while I inn eratrne earner onrrp.

HENRY WISE W001), 015 NEW' YORK, N. Y., ASSIGNOJRI, JBY MESNE ASSIGNMENTS, T0

W001DI NEWSPAPER MACHINERY CORPORATION, OF NJEW YORK,

TION or vrne'rnra.

N. r, a CORPORA- MACHINE FOR MAKING STEREOTYPE PRINTING-PLATES.

rant/gent.

. Application filed August 11, 1910. Serial No. 576,721.

Be it known that T,HE1\*RY ill/V xen "Woon, a citizen of the United States, residing at- New York, in the county of New York and State of New York, have invented a new and useful Machine for Making Stereotype Printing-Plates, of which thefollowing is a specification. I

This invention relates to a machine for finishing stereotype printing plates, and particularly for shaving-them. r

The principal objects of the invention are to provide a simple and efficient mechanism for shaving the plates one after the other, operating in suc'hqa way that the plates can be shaved as they are moved directly from the casting box on'a support, and to so -'arrangeand construct the shaving means that being shaved,- and consequently no mechanism will be required for pneventing such buckling of the plate; also to provide for conveniently and expeditiously trimming the edges of the plate if desired while it is ,being transferred to the shaving device. I

Further-objects and advantages of the invention will appear hereinafter.

Reference is to be had tothe accompanying drawings, in which 1 a Figure 1 is a plan of a portion of aY-flat stereotype printing plate. finishing machine constructed in accordance with this invention; Fig. 2 is a side view thereof; Fig-'3 is a side view of a modification, and .Fig. 1 is a bottom plan view of a plate;

In the form of the invention illustrated, the plates A arecast' in a castingbox 10 -which constitutes means'for holding a cast pivot pin 13 on Which is pivotally mounted a finger 14 having a hook 15 011 the end having a slanting top and adapted to engage in a notch in the underside of the cast plate. A spring 16 holds the hook yieldingly in position for. engaging the plate so that upon the reverse motion of the sliding arm 12 the plate will be drawn out of the casting box longitudinally. The plate. is

Specification of Letters Patent.

' ratented'nee. a, role.

drawn on a set of supports 11 certain of which are bifurcated to permit the hooks to pass between them. These supports are laterally adjustable along .a cross rod 17. As the hooks draw the plates out of the casting box the plates are brought against edge itrimming saws 20, and their edges are'f'thus trimmed 0E. These saws are operated by a belt driven in any desired way passing over' a pulley 21. If desired these saws can be entirely bmitted as shown in Fig. 3.

Whether or not theseedge trimming saws v are. present the plates are v shaved as they are drawn-out bythe hooks but while they I are firmly supported on the supports 11. This is done by means of a rotary shaver 25 mounted on a shaft 26 onwhich is a pulley 27 operated by a belt from any desired the plate passes under this rotary shaver it is firmly held by the hooksand rests on the supports. Therefore there is no danger of the plate buckling, andno'means has to be source of power. lt will be observed that as provided for avoiding this difficulty. The

surface speed-0f the rotary shaver preferably is materially greater than the surface speed of the plate which travels'under it. After the plate has been shaved in this way the hooks continue to draw itout until the entire plate passes the shaver when the hooks" verselyxover the supports .11 and engage the plate so asto push it off the supports on a series of slats 32 which are arranged trans verselyto the suppdrts 11. The hooks 15 are automatically disengaged from the notchesin the plate, The hooks engaging in the long.

slot .a are disengaged therefrom at its end when the plate moves beyond them. As soon as the pushers 30 reach the delivery side of the supports 11 they startback and leave the plate in position for further operations.

When they have moved all the way back 7,

the hooks 15 have moved forward and are ready to'start back with another plate. It will be seen that this construction is very simple, that the plates can be cflicienty shaved, and that if the plates are cast Sn 1- *ciently true on the edges so that the edges lot do not have to be shaved even the saws 2O can be eliminated as shown in Fig. 3.

While it have illustrated and described port, of a set of pushers arranged to move transversely to remove "the plate from the support in a linecat right angles to its direction of motion vice. I

2. Ina machine for finishing stereotype printing plates, the combination of a rotary shaving device in position to shave one side of a plate while it. is being moved along in a plane, and reciprocable spring-pressed hooks for engaging the other side of' the plate near its forward edge and drawing it past said shaving device.

adapted to extend under the. shaving device 3. In a machine for finishing stereotype printing plates, the combination of means for supporting a widethin stereotype plate in the position in which it is discharged from a holding means, edge bevel ing saws A located at the receiving side of said supporting means, a rotary shaving device located above said siipporting means in position to shave the plate as it is moved thereon, and means located beyond the shaving device past the rotary shaving defor engaging the plate and drawingit under the shaving device.

4. In a machine for finishing stereotype printing plates, the combination with a support and a rotary shaving device located above said support in position to shave the plate as it is moved on the support, of means at one side of said support on a level therewith for moving the plate laterally from said support. v

5. In a machine for finishing stereotype printing plates, the combination with a support and a rotary shaving device located above said support in position to shave the plate as it is moved thereon, of a set of i pushers arranged to move transversely over said support to remove the plate therefrom in a line at right angles to its direction of motion under the rotary shaving device, and means at the side of said support for receiving the plate.

6. In a machine for finishing stereotype I printing plates, the combination with a support and a rotary shaving device located above said support in position to shave the plate as it is moved thereon, of a set of pushers, arranged to move transversely over said support-to remove the plate therefrom in a line at right angles to its direction of motion under the rotary shaving device.

In testimony whereof I have hereunto set my hand, in the presence of two subscribing witnesses. a

7 .HENRY A. WISE WOOD.

Witnesses: 1

F. W. HowLAND,

ELIZABETH CALDBECK. 

